(a) An optometrist or therapeutic optometrist shall, within a reasonable time after completing an examination of a patient, present to the patient a prescription, bill, or receipt containing the license number and name of the optometrist or therapeutic optometrist. This subsection does not affect the individual professional liability of the optometrist or therapeutic optometrist.
(b) Notwithstanding Subsection (a), a person practicing optometry or therapeutic optometry outside of the principal office in which the person practices optometry or therapeutic optometry shall deliver to a patient fitted with eyeglasses a specification of and the prices charged for the lenses and material provided to the patient, with a bill containing:
(1) the person's signature;
(2) the person's mailing address; and
(3) the number of the person's license or certificate.